Coating composition



Patented July 3,

coa'rnvo COMPOSITION ileum G. Little, Wilmington, DeL, assignor to Hercules Powder Company, Wilmington, Del., a corporation of Delaware a No Drawing. Application July 80,1942,

Serial No. 452,887

14 Claims- (Cl. 108-144) This invention relates to coating compositions and, more particularly, to compositions compris-- ing metal protein complexes and resin plasticizers therefor, which are useful as rug backings, adhesives, wall coating, etc.

Heretofore, textile materials such as shade cloths, rug backings and the like have been treated with a variety of compositions to give body, stiflness, and weight. For instance; it has been the practice in the manufactureof woven rugs to coat them on the unnapped or base side with mixtures of starchesgums, softeners, fillers, waxes, etc. These types of finishing mixtures are not entirely satisfactory for finishing fab-- rics since these mixtures under humidity change are apt to break down, lose their characteristic stiffness and feel become limp and soft. They are not resistant to dusting out since the starches and gums are imperfect binders for the filling material such as clay.

Other disadvantages in the use of starch-clay mixtures for rub backing, shade cloths and the like, is the ease with which these finishes are removed even in mild washing procedures. This makes it necessary to re-finish the rug each time it is shampooed. Also, finishes containingstarch as the binder under warm, humid conditions are likely to promote the growth of mildew.

Now, in accordance with the present invention it'has been found that these disadvantages are overcome by the use of a composition of certain protein metal complexes plasticized with a polyhydric alcohol ester of a rosin and containing inert fillers varying from to about 90% depending upon the use to which the composition is to be put. The composition applied to the textiles imparts desirable properties to the textile material with regard to fullness, stiffness or hand, and weight and produces a finish which is substantially resistant to dusting and the mild shampoo and washing treatments ordinarily given to labrics.

The following examples illustrate methods of carrying out the invention:

Example 1 Parts Zinc caseinate 19 Ammonium hydroxide 28% 5 Water 107 Diethylene glycol ester of rosin --80% solution in xylene 20 Talc 7O Pontamine Diaz o Black BHSW concentrate 0.1 The above composition was made by wetting 50 for one-half hour.

the zinc caseinate in 90 parts water for one-half hour and subsequently heating to 11o-120 F. The ammonium hydroxide was then added and the mixture stirred for five minutes. ester solution was added and stirred in. The talc and dyestufl were stirred with 17 parts of water to form a paste and this was added to the other ingredients, the complete mixture stirred 'untiba smooth paste was formed. The mix was then applied to the back of an Axminster ru and dried in an air blast oven at 200 to 250 F. for 20 to 30 minutes. The rug was given a shampoo treatment with water and a 3% Nacconal NR solution (alkyl aryl sulfonate) at 70 F. and brushed with a soitbristled brush. The rug was thoroughly rinsed with water and then dried at 140 F. The rug sample finished with the above composition showed almost no loss of finish after the shampoo treatment, whereas a rug sample subiected to the same treatment which had been finished with the conventional starch finish lost a major portion of its finish.

Example 2 Parts Zinc caseinate 3 Clay 20 Mixture of the diethylene glycol ester of rosin and the pentaerythritol ester of ros- 5 in -80% solution inxylene Karaya gum 0.1 Ammonia 28% 2 Water at 140 F. 48

The above-mixture was made up as described in l Example 1 and used to backfill Axminster carpeting which was dried under tension at 230 F. The finish was substantially resistant to the shampoo treatment described in Example 1 above.

Example 3 Zinc caseinate 2'7 Mixture of the diethylene glycol ester or rosin and the pentaerythritol ester of rosin 5 solution in xylene 30 Talc Ammonia 28% 12 Water at 140 F The zinc caseinate was stirred into the water The ammonia was then added and stirring continued until solution of the zinc caseinate was effected. The other ingredients were stirred in and the mix held at F;

for 1 /2 hours. The mix was then applied to the as two sides of a strip of lawn fabric with a doctor The rosin best with the protein metal 2 blade, and the cloth dried at 220' I". The cloth was well filled and was not affected by sponging A portion of regularly tested and it tended to with warm soap water. starched fabric was also A break down on sponging'with warm soap water.

9,879,812 I 1. A composition comprising a water-insoluble metal protein complex and a po y ydric alcohol The proteinymetalcomplexes/used are-those I as zinc ammonium caseinate.

The resins which are most useful and combine complexes, comprise the polyhydric alcohol esters of a rosin and particularlythe .glycerine and glycol esters or rosin or hydrogenated rosin, the pentaerythritol wters oi resin or hydrogenated rosin, the glycerine and glycol esters of polymerized rosin or hydrogenated rosin either in solvent solution or emulsion form.

A wide variety or other compounds such as-illl ers, coloring matter, wetting agents, emulsifying agents, etc. may be used. The fillers commonly .used include clay, talc, whiting, etc. Various solvent ior the resin such as alcohols, ethers, esters, and hydrocarbons, etc. may also be used. The percentage composition of the protein resin mixture will vary according to the use to which it is to be put, but in general it will contain from 10 to 60% of the protein complex and from 40 to 90% of the resin. Preferably, a mixture of Where filler is used, the amount may vary very widely as, for instance, from to 90% 01' the total composition, the above mixture rangingfrom to 100% of the total composition. 7

While compositions useful for backing rugs and other textile materials have been described the.

present invention contemplates the use or the resin metal protein complex composition for any other use such as a paper size, water paint, ink, adhesive, laminating paper, in wallboard coating, etc.

Thus, in accordance with the present invention,

, a composition comprising a resin plasticizer and a metal protein complexhas been described which has desirable'properties or resistance to humidity,

lariyre'sistance-to water and warm soap solutions.

What I claim-and desire to Patent is:

Patent No. 2,579,812.

protect by letters rosin ester as a plasticizer therefor.

2. A q mposition comprising a water-insolublemetal protein complex, a polyhydric alcohol. rosin ester as a plasticizer therefor, and a filler.

3. Acomposition comprising a water-insoluble metal protein complex and from about 40% to about 90% oi a polyhydric alcohol rosin ester.

, .4. A composition comprising a water-insoluble metal casein complex ands. polyhydric alcohol rosinester as aplasticizer therefor.

vIll complexes with ammonia or aliphatic amine such I 5. A composition comprising a metal a'inmonium caseinate and a polyhydrlc alcohol rosin ester as a plasticizer therefor.

6. A compodtion comprising zinc caseinate and a polyhydric alcohol rosin ester as a plasticizer therefor.

7. A composition comprising a mixture 01'; Polyvalent metal casein complex 10% to 60% by weight v Polyhydric alcohol rosin about resin and 50% complex is used;

a temperature changes, deterioration, and particu JULIUS G. LITQLE.

ing zinc caseinate and and the pentaerythrltol ester 14. A composition for backing a rug zinc ammonium casein complex.

r 9.0% to 40% by weight Filler 0% to 90% by weight of the total composition r 8. Acomposition comprising amixture 0f v Polyvalent metal casein complex ,1o'% to by weight Polyhydric alcohol rosin Z ester to 40% by weight Clay 0% to 90% b weight or the total composition I 9. A composition comprising zinc ammonium casein complex, di'ethylene glycol ester of rosin, and tile.

zinc caseinate, clay, and the diethylene glycol ester of rosin.

11..A compontion for booking a rug comprising a water-insoluble metal protein complex, a filler, and the diethylene glycol ester of rosin.

f 12. A composition for backing a rug comprising zinc ammonium casein complex, a iilier, and a polyhydric alcohol rosin es 13. A composition for backing a rug compris-.

a mixture oibdiethylens glycol eater of rosin oi rosin.

a mixture of and the pentaerythritol diethylene ester oi rosin ester of rosin, and cllycasnrrcspm or coanscrror. i

u y 19 5-. i

' It is hereby certified that error appears in the printed specificationof the above numbered patent ,r'equir ing correction as follows: Page 2, socand co lumn, line 10, claim 1+, after. "water-insoluble""insert '--po1yva1ent-.-;. and that the sai d letters Patent should be read with this correction there: in that the same may conform to the record of'fthe. case in the Patent Office. I

Signed and sealed this 2nd day of October, A. D. 3.91.1.5.

(Seal) Leslie Frazer First Assis ta'nt Commissioner of Patents.

10. A composition for backing a rug comprising best with the protein metal 2 blade, and the cloth dried at 220' I". The cloth was well filled and was not affected by sponging A portion of regularly tested and it tended to with warm soap water. starched fabric was also A break down on sponging'with warm soap water.

9,879,812 I 1. A composition comprising a water-insoluble metal protein complex and a po y ydric alcohol The proteinymetalcomplexes/used are-those I as zinc ammonium caseinate.

The resins which are most useful and combine complexes, comprise the polyhydric alcohol esters of a rosin and particularlythe .glycerine and glycol esters or rosin or hydrogenated rosin, the pentaerythritol wters oi resin or hydrogenated rosin, the glycerine and glycol esters of polymerized rosin or hydrogenated rosin either in solvent solution or emulsion form.

A wide variety or other compounds such as-illl ers, coloring matter, wetting agents, emulsifying agents, etc. may be used. The fillers commonly .used include clay, talc, whiting, etc. Various solvent ior the resin such as alcohols, ethers, esters, and hydrocarbons, etc. may also be used. The percentage composition of the protein resin mixture will vary according to the use to which it is to be put, but in general it will contain from 10 to 60% of the protein complex and from 40 to 90% of the resin. Preferably, a mixture of Where filler is used, the amount may vary very widely as, for instance, from to 90% 01' the total composition, the above mixture rangingfrom to 100% of the total composition. 7

While compositions useful for backing rugs and other textile materials have been described the.

present invention contemplates the use or the resin metal protein complex composition for any other use such as a paper size, water paint, ink, adhesive, laminating paper, in wallboard coating, etc.

Thus, in accordance with the present invention,

, a composition comprising a resin plasticizer and a metal protein complexhas been described which has desirable'properties or resistance to humidity,

lariyre'sistance-to water and warm soap solutions.

What I claim-and desire to Patent is:

Patent No. 2,579,812.

protect by letters rosin ester as a plasticizer therefor.

2. A q mposition comprising a water-insolublemetal protein complex, a polyhydric alcohol. rosin ester as a plasticizer therefor, and a filler.

3. Acomposition comprising a water-insoluble metal protein complex and from about 40% to about 90% oi a polyhydric alcohol rosin ester.

, .4. A composition comprising a water-insoluble metal casein complex ands. polyhydric alcohol rosinester as aplasticizer therefor.

vIll complexes with ammonia or aliphatic amine such I 5. A composition comprising a metal a'inmonium caseinate and a polyhydrlc alcohol rosin ester as a plasticizer therefor.

6. A compodtion comprising zinc caseinate and a polyhydric alcohol rosin ester as a plasticizer therefor.

7. A composition comprising a mixture 01'; Polyvalent metal casein complex 10% to 60% by weight v Polyhydric alcohol rosin about resin and 50% complex is used;

a temperature changes, deterioration, and particu JULIUS G. LITQLE.

ing zinc caseinate and and the pentaerythrltol ester 14. A composition for backing a rug zinc ammonium casein complex.

r 9.0% to 40% by weight Filler 0% to 90% by weight of the total composition r 8. Acomposition comprising amixture 0f v Polyvalent metal casein complex ,1o'% to by weight Polyhydric alcohol rosin Z ester to 40% by weight Clay 0% to 90% b weight or the total composition I 9. A composition comprising zinc ammonium casein complex, di'ethylene glycol ester of rosin, and tile.

zinc caseinate, clay, and the diethylene glycol ester of rosin.

11..A compontion for booking a rug comprising a water-insoluble metal protein complex, a filler, and the diethylene glycol ester of rosin.

f 12. A composition for backing a rug comprising zinc ammonium casein complex, a iilier, and a polyhydric alcohol rosin es 13. A composition for backing a rug compris-.

a mixture oibdiethylens glycol eater of rosin oi rosin.

a mixture of and the pentaerythritol diethylene ester oi rosin ester of rosin, and cllycasnrrcspm or coanscrror. i

u y 19 5-. i

' It is hereby certified that error appears in the printed specificationof the above numbered patent ,r'equir ing correction as follows: Page 2, socand co lumn, line 10, claim 1+, after. "water-insoluble""insert '--po1yva1ent-.-;. and that the sai d letters Patent should be read with this correction there: in that the same may conform to the record of'fthe. case in the Patent Office. I

Signed and sealed this 2nd day of October, A. D. 3.91.1.5.

(Seal) Leslie Frazer First Assis ta'nt Commissioner of Patents.

10. A composition for backing a rug comprising 

